Device for use as a hot and cold compress

• US 3,885,403 A
• Filed: 08/16/1973
• Issued: 05/27/1975
• Est. Priority Date: 07/20/1971
• Status: Expired due to Term

• Current Assignee: Jacob J. Spencer
• Original Assignee: Jacob J. Spencer
• Inventors: Spencer, Jacob J.
• Primary Examiner(s): Wye, William J.
• Application Number:
  US05/388,865
• Time in Patent Office: 649 Days
• Field of Search: 62/530 165/46 150/2.1 128/403,399
• US Class Current: 62/530
• CPC Class Codes: A61F 2007/0219 Gels
• CPC Class Codes: A61F 2013/00187 insulating; warmth or cold applying
• CPC Class Codes: A61F 7/02 Compresses or poultices for effecting heating or cooling
• CPC Class Codes: F25D 2303/082 disposed in a cold storage element not forming part of a container for products to be cooled, e.g. ice pack or gel accumulator
• CPC Class Codes: F25D 2303/085 Compositions of cold storage materials
• CPC Class Codes: F25D 3/00 Devices using other cold materials; Devices using cold-storage bodies
• CPC Class Codes: F28D 2020/0008 the heat storage material being enclosed in plate-like or laminated elements, e.g. in plates having internal compartments

Abstract

A device for use as a hot and cold compress comprises a tough flexible envelope of plastic material within which is a gel which maintains a gel-like consistency over a wide temperature range.

Claims

1. A HOT AND COLD COMPRESS COMPRISING A TOUGH, FLEXIBLE, SEALED ENVELOPE AND A NEUTRAL GEL WITHIN SAID ENVELOPE, SAID GEL BEING COMPRISED OF A MIXTURE OF WATER, A FREEZING POINT DEPRESSANT SELECTED FROM THE GROUP CONSISTING OF GLYCERINE, PROPYLENE GLYCOL AND MIXTURES THEREOF AND A THICKENING AGENT THE RELATIVE PROPORTIONS OF THE WATER TO THE FREEZING POINT DEPRESSANT BY WEIGHT BEING ABOUT 1:

1 TO ABOUT 7;

3, SAID GEL MAINTAINING ITS GEL-LIKE CONSISTENCY OVER A TEMPERATURE RANGE OF ABOUT 0* TO ABOUT 212*F.

2. A compress according to claim 1, in which the gel further comprises a fungistat.

3. A compress according to claim 2, in which the fungistat comprises methyl paraben.

4. A compress according to claim 1, in which the thickening agent is acidic and the gel further comprises a neutralizing agent.

5. A compress according to claim 4, in which the thickening agent comprises carboxy vinyl polymer.

6. A compress according to claim 5, in which the neutralizing agent comprises sodium hydroxide.

7. A compress according to claim 4, in which the gel further comprisEs a fungistat.

8. A compress according to claim 5, in which the fungistat comprises methyl paraben.

9. A compress according to claim 8, in which the thickening agent comprises carboxy vinyl polymer.

10. A compress according to claim 9, in which the weight proportion of the polymer based on the total weight of the water and the freezing point depressant is about 1 to about 4%.